Question

Which figure represents the image of trapezoid LMNP after a reflection across the x-axis?

figure A
figure B
figure C
figure D

On a coordinate plane, 5 trapezoids are shown. Trapezoid L M N P is in quadrant 2 and has points (negative 2, 3), (negative 2, 6), (negative 1, 6), and (negative 1, 4). Trapezoid B is reflected in quadrant 2. Trapezoid C is reflected across the y-axis. Trapezoid D is reflected into quadrant 4. Trapezoid A is reflected across the x-axis.

Answer 1

Figure A.

Reflection across the x-axis sends (x,y) → (x,−y). The vertices become (−2,−3), (−2,−6), (−1,−6), (−1,−4), which matches the trapezoid shown in figure A.